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Search: Posts Made By: Freemasm
Forum: RV Building Tips/Techniques 07-26-2021, 08:59 AM
Replies: 12
Views: 480
Posted By Freemasm
Can't speak for your configuration but for my...

Can't speak for your configuration but for my Rocket build, I put the return in the tank access plate; just the end of the bulkhead fitting sticking through. Super easy. Ensure you satisfy any...
Forum: RV Ongoing Maintenance Issues 07-24-2021, 08:10 AM
Replies: 11
Views: 747
Posted By Freemasm
@Larry. I’m not a mag guy. I can’t think of...

@Larry. I’m not a mag guy. I can’t think of another scenario. I would assume the OP is at strong risk of a kick-back and starter damage if I’m picturing this correctly
Forum: RV Ongoing Maintenance Issues 07-23-2021, 04:50 PM
Replies: 11
Views: 747
Posted By Freemasm
What type of fuel are you burning? What CR...

What type of fuel are you burning?
What CR pistons?
What kind of mags?
What are EGTs doing during this?
Etc.

The move info, the better.

Despite your last paragraph, it certainly sounds as if one...
Forum: Reviews 07-23-2021, 12:16 PM
Replies: 1
Views: 422
Posted By Freemasm
Certified Slings

This thread could have gone in several other categories. The info probably only pertains to Rockets or earlier Vans kits which require more fab'ing of parts. While not specifically an aircraft parts...
Forum: RV-4 07-21-2021, 07:55 AM
Replies: 31
Views: 8,745
Posted By Freemasm
First off, make no mistake assuming I have any...

First off, make no mistake assuming I have any experience with autopilots; however, in my experience with designing (mostly industrial gas turbine) systems, it is most always better to take advantage...
Forum: RV-4 07-19-2021, 09:12 AM
Replies: 31
Views: 8,745
Posted By Freemasm
My approach. Thanks to all

Settled on the approach a la’ Finnflyer and Mr Hersha. Took a while
but the kinematics work out and there’s clearance for any item/fastener replacement and the 2” duct to route beneath the servo. Pay...
Forum: Rocket 07-19-2021, 07:51 AM
Replies: 5
Views: 541
Posted By Freemasm
Cooling air and Heating. Share your approaches.

I'm taking Vince's recommendations and utilizing one each NACA inlet on the bottom of the wings. Ventilation here in hot AF Florida is important to say the least. That said, I'll also install a heat...
Forum: RV Ongoing Maintenance Issues 07-16-2021, 12:23 PM
Replies: 11
Views: 980
Posted By Freemasm
Piling on

Don't forget, assuming an impulse coupling, make sure you clear the retard point first. etc. etc. etc.

I saw this yesterday and was reluctant to reply. It's already been mentioned and can't be...
Forum: Alternative Engines 07-14-2021, 11:37 AM
Replies: 2
Views: 558
Posted By Freemasm
Video = "Why New Aircraft Engines Rarely Succeed"

Not exactly new but will be to some. It's full of commentary that will create disagreement. It should also provoke some good discussion. Regardless, we're overdue for some "new" content in this...
Forum: RV General Discussion/News 07-13-2021, 08:18 PM
Replies: 5
Views: 905
Posted By Freemasm
Post more info on your fuel system config/type...

Post more info on your fuel system config/type and your chances of meaningful responses will increase a lot.

Let us know.
Forum: Traditional Aircraft Engines 07-07-2021, 03:03 PM
Replies: 4
Views: 349
Posted By Freemasm
?? Push rod tube or drain line?

?? Push rod tube or drain line?
Forum: RV General Discussion/News 07-07-2021, 06:12 AM
Replies: 48
Views: 3,249
Posted By Freemasm
Owned certified for thirty years, a Mooney for...

Owned certified for thirty years, a Mooney for almost that long. Three Mooney bankruptcies over that time. Long wait for parts which were ridiculously expensive, etc. I did the vast majority of the...
Forum: RV Building Tips/Techniques 07-03-2021, 10:50 AM
Replies: 6
Views: 518
Posted By Freemasm
Per all of the plans Iíve ever seen, the Spar...

Per all of the plans Iíve ever seen, the Spar bolt holes are supposed to be close tolerance. Not going to get that by only utilizing any drill bit and/or technique. Follow the plans. Let design...
Forum: RV Building Tips/Techniques 07-03-2021, 10:30 AM
Replies: 6
Views: 518
Posted By Freemasm
God bless design margin

God bless design margin
Forum: RV Building Tips/Techniques 07-03-2021, 10:28 AM
Replies: 1
Views: 262
Posted By Freemasm
All depends

Lots of ways to safely do it. Ensure the particular/filtration requirements are met for each of the components; BP, total FI system or components if system reqs arenít listed (servos, injectors,...
Forum: RV-4 07-01-2021, 09:33 AM
Replies: 21
Views: 2,580
Posted By Freemasm
Sticking with my previous mea culpa-ish post....

Sticking with my previous mea culpa-ish post. Wrong on the absorption/wrong part of the EM spectrum. Still think I'm right on the emission. Never mentioned exhausts where any coating would be short...
Forum: RV-4 07-01-2021, 06:32 AM
Replies: 21
Views: 2,580
Posted By Freemasm
Thanks Mr. Burns, Been a long time since I've...

Thanks Mr. Burns,

Been a long time since I've been in school but it sounds like I was just taken to school. I'll have to bone up on it again. To be clear, you're talking about the white paint only....
Forum: RV General Discussion/News 06-28-2021, 05:53 PM
Replies: 9
Views: 762
Posted By Freemasm
Lay out in a Rocket and product review.

@Stew. Very easy installation

https://vansairforce.net/community/showthread.php?t=194876
Forum: RV-4 06-28-2021, 08:39 AM
Replies: 21
Views: 2,580
Posted By Freemasm
Kirchhoff's Law (of Radiation). An extension of...

Kirchhoff's Law (of Radiation). An extension of the second law of thermo, IIRC.

Simplified, bodies emit and absorb radiation at the same rate. In general for applications: if you're trying to...
Forum: Traditional Aircraft Engines 06-25-2021, 08:53 AM
Replies: 63
Views: 4,309
Posted By Freemasm
???

First off, I would have lost any related bet.

I didn't read the root cause response quite the same as DanH or Larry; assuming I correctly interpreted their writings. Trying to conceptualize the...
Forum: RV-4 06-25-2021, 07:51 AM
Replies: 3
Views: 386
Posted By Freemasm
016 Control Surface Advice/Help (or put me out of my misery)

Background: I'm building a Rocket lite. Standard RV4 tail feathers and wings. I got into this without knowing a lot about the RVs.

Issue: The Kit has 016 control surface skins. I had reservations...
Forum: RV-4 06-25-2021, 07:36 AM
Replies: 14
Views: 969
Posted By Freemasm
Another approach to consider

Building Rocket lite. I utilized the RV8 roll trim kit. It is spring bias type that connects to the control column. No mods to control surfaces required but does require some sub floor work...
Forum: Tools 06-23-2021, 08:36 AM
Replies: 36
Views: 2,663
Posted By Freemasm
Milbar. There is no second place.

Milbar. There is no second place.
Forum: Traditional Aircraft Engines 06-22-2021, 08:48 AM
Replies: 13
Views: 1,303
Posted By Freemasm
The dye helps significantly

Makes it light up like a disco.

Note to self. When using it in fuel for tank leak checks, it will wick up the surfaces to unfilled rivet holes. You will panic and curse before realizing what...
Forum: RV Ongoing Maintenance Issues 06-22-2021, 07:13 AM
Replies: 6
Views: 893
Posted By Freemasm
Er, no

Very common to (need to) shim between the mount(s) and the isolator(s). Didn't see what isolators you bought from a quick read. Get on that OEMs website and buy the required shims. It will also...
Forum: Traditional Aircraft Engines 06-21-2021, 10:31 AM
Replies: 17
Views: 1,412
Posted By Freemasm
The situation you describe would make sense for...

The situation you describe would make sense for the main pump to lose prime, not the boost pump; assuming I'm following your description.

It still doesn't make sense to me why the BP is losing...
Forum: RV-4 06-21-2021, 07:53 AM
Replies: 2
Views: 496
Posted By Freemasm
Thanks and sorry for being blind (again). The...

Thanks and sorry for being blind (again). The "quickbuilder" installed the bellcrank at BH 8, 1/4" off (placed relative to the BH horizontal flange versus the vertical section). Also, the hole in the...
Forum: RV-4 06-20-2021, 05:10 PM
Replies: 2
Views: 496
Posted By Freemasm
Sorry. Down elevator stop question.

Iím probably being my typical blind, dumb self. Where is the down elevator stop? Iím fabbing the push/pull tube and trying to ensure I have adequate adjustability. The the bellcrank-bulkhead I/F a...
Forum: Traditional Aircraft Engines 06-20-2021, 04:46 PM
Replies: 17
Views: 1,412
Posted By Freemasm
Without knowing, youíd vapor pressures associated...

Without knowing, youíd vapor pressures associated with car gas. To have it vaporize before the BP implies losses (really dirty pre-filter) or unrealistic heat problems though probably a combo. Give...
Forum: Traditional Aircraft Engines 06-19-2021, 09:41 PM
Replies: 17
Views: 1,412
Posted By Freemasm
Depends on the component. Some are adjustable and...

Depends on the component. Some are adjustable and obvious. Others, not so much. Commonly, the BP used with a once through system (simplex pump/no fuel return) has an internal relief that ports excess...
Forum: Traditional Aircraft Engines 06-19-2021, 04:07 PM
Replies: 17
Views: 1,412
Posted By Freemasm
Iíll state again. The boost pump should provide...

Iíll state again. The boost pump should provide almost constant pressure regardless of flow demand. The associated relief valve should be set ~ 0.5 psi (whatever is noticeable on your FP gage). Maybe...
Forum: RV Ongoing Maintenance Issues 06-18-2021, 08:39 AM
Replies: 4
Views: 903
Posted By Freemasm
This is a big problem in Mooney aircraft. See...

This is a big problem in Mooney aircraft. See above. By name only not one of the "spin-offs". Search Mooneyspace is you need convincing on who's best.
Forum: RV-8/8A 06-18-2021, 06:21 AM
Replies: 6
Views: 504
Posted By Freemasm
You'll probably need help, but

Get the thinnest edged bar that you have (or can reasonably make/grind/alter to fit) and mount it in a vise. You'll probably need someone to level from the other end of the work piece. Hold the piece...
Forum: Traditional Aircraft Engines 06-17-2021, 05:54 AM
Replies: 17
Views: 1,412
Posted By Freemasm
Doesn't sound right. The boost pump sounds like...

Doesn't sound right. The boost pump sounds like it has a flow issue. Assuming a "regular" application, the boost pump should maintain ~ constant pressure across it's flow range. This range should...
Forum: RV Building Tips/Techniques 06-16-2021, 11:11 AM
Replies: 5
Views: 796
Posted By Freemasm
Order now

You'll need some for wing tanks and other. They won't go bad. Combine the shipping costs with your upcoming order.
Forum: RV Building Tips/Techniques 06-09-2021, 07:57 PM
Replies: 12
Views: 896
Posted By Freemasm
Wing root forwarding pumps or similar?

Wing root forwarding pumps or similar?
Forum: RV-4 06-08-2021, 07:23 AM
Replies: 8
Views: 735
Posted By Freemasm
Dilemma

Thanks to all. Here is what I'm afraid of.

These are all slow build construction. If I purchase -8 parts (pre-punched), worry the ailerons will then be out of plane with the flaps. Or maybe the...
Forum: RV-4 06-07-2021, 03:04 PM
Replies: 8
Views: 735
Posted By Freemasm
Thanks to all

I suppose the 016s are guaranteed to crack?

Can probably form one myself if:
I can borrow the long brake at the FBO
I get enough 020 to ruin a couple first

Any other info, please forward along....
Forum: RV-4 06-07-2021, 12:35 PM
Replies: 8
Views: 735
Posted By Freemasm
Aileron Skin

I'm building an F4 (Rocket lite) with a "standard" RV-4 wing. I've heard side discussions about the aileron skins being updated to a thicker gage. The skins I have are 016. I've seen an RV-8...
Forum: Rocket 06-02-2021, 09:13 AM
Replies: 4
Views: 701
Posted By Freemasm
Right or wrong, but done

For what it’s worth. The holes were already reamed and dimensionally verified. I had already made drift pins (long taper and very even/smooth before you ask). Even with no perceivable/measurable hole...
Forum: RV General Discussion/News 05-31-2021, 03:59 PM
Replies: 79
Views: 8,681
Posted By Freemasm
Can you get me smarter in how to read this? ...

Can you get me smarter in how to read this? Knock limited power, increase per cent (sic? Percent?)? I would thought it would be referenced to CR. I guess Iíll oh could extrapolate if you assumed...
Forum: Rocket 05-30-2021, 01:00 PM
Replies: 4
Views: 701
Posted By Freemasm
Center Section Bolts

Taking the advice of those before me, Iím installing/aligning/etc the wings before the HS; advice being determine the actual angle of wing incidence. Then set HS to match. The first wing ďinsertedĒ...
Forum: Alternative Engines 05-28-2021, 06:26 AM
Replies: 25
Views: 3,363
Posted By Freemasm
The plug was pulled on this long before the...

The plug was pulled on this long before the electric bandwagon had started up. The applicable, available technologies are great, if you want to do short duration pattern work alone. There's plenty of...
Forum: RV General Discussion/News 05-28-2021, 06:03 AM
Replies: 79
Views: 8,681
Posted By Freemasm
@Mr. Farnham Did it meet heating value? If so,...

@Mr. Farnham
Did it meet heating value? If so, the density misses are at least quite manageable. (Do Canadians think/talk in Joules when not speaking to people in the states?)
Forum: RV General Discussion/News 05-27-2021, 01:41 PM
Replies: 5
Views: 1,021
Posted By Freemasm
Something to consider

My two cents (to our SE friends, an American-ism meaning this opinion isn't worth much):

As painful/expensive as it might be, making one payment/signing one contract for this may have merits. There...
Forum: RV General Discussion/News 05-27-2021, 01:32 PM
Replies: 81
Views: 15,540
Posted By Freemasm
Related to start-up = big yes. Related to other...

Related to start-up = big yes.

Related to other operation = big unknown. A lot would depend on overall fuel system configuration/variables. Unless I'm not understanding the intended statement/idea...
Forum: RV General Discussion/News 05-26-2021, 02:19 PM
Replies: 79
Views: 8,681
Posted By Freemasm
GREAT, informative post

I've asked the associated contributor if I can repost this here. There's some very small (IMO) details left out but a truly informative post; possibly the best I've read anywhere.
Forum: RV General Discussion/News 05-26-2021, 01:47 PM
Replies: 79
Views: 8,681
Posted By Freemasm
Case in point

Just so you know. My friend buys Swift 94UL at 700 gallons US bulk from a distributer here in FL. He paid ~$5.50/gallon, delivered to his property with his last purchase. You can find 100LL cheaper...
Forum: RV General Discussion/News 05-25-2021, 04:27 PM
Replies: 79
Views: 8,681
Posted By Freemasm
Poorly worded on my part. It is available though...

Poorly worded on my part. It is available though pretty limited. It was the leading candidate to replace 100LL in most people's view. Then somewhat suddenly, the efforts associated with PAFI seemed...
Forum: RV General Discussion/News 05-25-2021, 08:45 AM
Replies: 79
Views: 8,681
Posted By Freemasm
PAFI. What killed Swift Fuel candidate

Rather than creating thread drift in another lead/AVGAS forum, I'd like to start here. Many know the seemingly quiet death of PAFI. Swift fuel seemed very promising and I have friends who buy it in...
Forum: RV Building Tips/Techniques 05-25-2021, 07:33 AM
Replies: 52
Views: 5,410
Posted By Freemasm
Possible save

Is it just the skin? If so, you might me OK structurally/accepted methods wise.

IF you have 4.5D between fasteners (after addition as follows) you could place a rivet on each side. Rivet the f-ed...
Forum: RV General Discussion/News 05-25-2021, 07:20 AM
Replies: 20
Views: 2,038
Posted By Freemasm
For those who wish to do so

Someone mentioned Q-tips. If you are going to use primer inside of fastener holes (some applications call for such like Hi-Loks, depending on material), finger nail polish bottles work great for...
Forum: RV General Discussion/News 05-24-2021, 10:53 AM
Replies: 8
Views: 1,148
Posted By Freemasm
Side note

If you don't have a drill gage(s), get one. Also good for a quick/sanity check for exactly the kind of work what you're doing. If you get it from the Yard Store and they usually include a cardboard...
Forum: Electrical Systems 05-24-2021, 09:20 AM
Replies: 15
Views: 2,839
Posted By Freemasm
Gonna hear it for this one

I'm sure I'm gonna hear it for this one. Before the new tech OEM specific chargers became a thing, I was actually opposed to any type of battery charging system. Not too long ago, the OEM's offerings...
Forum: RV General Discussion/News 05-21-2021, 06:09 AM
Replies: 68
Views: 9,006
Posted By Freemasm
So many Master-left-on stories

When I bought my first aircraft over three decades ago, an old timer taught me to always leave the beacon/strobe on. You can't not-see it when you get out. I've never missed a flight or killed a...
Forum: Electrical Systems 05-20-2021, 11:07 AM
Replies: 10
Views: 1,944
Posted By Freemasm
Novice question, sorry

Pardon the novice question. Can the internal voltage reg on the NDs be set to 13.8?. A $60 alt sure sounds better than a 7-$800 one.
Forum: Rocket 05-19-2021, 08:30 AM
Replies: 9
Views: 1,096
Posted By Freemasm
Sub panel/Avionics "bay" ideas

Care to share any of your subpanel and avionics bay construction ideas? Pix would be great.

Between EFI/EI, avionics signal converters, remote devices, etc. It's going to get crowded back there. ...
Forum: RV Ongoing Maintenance Issues 05-16-2021, 10:24 AM
Replies: 9
Views: 895
Posted By Freemasm
Honestly, my brain jumped to a fuel system...

Honestly, my brain jumped to a fuel system problem given the cyclic nature.

What are the other parameters doing at the same time (fuel press, oil press, manifold, etc.)? What kind of systems are...
Forum: Electrical Systems 05-15-2021, 10:58 AM
Replies: 12
Views: 1,131
Posted By Freemasm
@DanH. You might have misunderstood my meaning. I...

@DanH. You might have misunderstood my meaning. I was calling BS on myself. I’ve been through too many engineering/technical issues in my life to not respect the unknown variables that can creep in....
Forum: RV-8/8A 05-14-2021, 12:01 PM
Replies: 5
Views: 600
Posted By Freemasm
Check the Rocket forum. Some interesting/clever...

Check the Rocket forum. Some interesting/clever adaptations.
Forum: Electrical Systems 05-14-2021, 08:22 AM
Replies: 12
Views: 1,131
Posted By Freemasm
@Carl F Yes. It is a whole system...

@Carl F
Yes. It is a whole system integration/redundancy approach. We've spoken a little in the past and I'd like to again if you don't mind. I sent you a PM. I too am in favor or a "dumb" analog...
Forum: Electrical Systems 05-13-2021, 04:16 PM
Replies: 12
Views: 1,131
Posted By Freemasm
It is basically a standard, low wing, no header...

It is basically a standard, low wing, no header tank config past the fuel selector. The typical boost pump is a dual/redundant electric pump assembly (no engine driven mechanical pump. As someone...
Forum: Electrical Systems 05-13-2021, 10:21 AM
Replies: 12
Views: 1,131
Posted By Freemasm
Friendly Challenge, Fuel Pump Electrical Power

A friendly challenge/request for help to Mr. Froelich, Mr. Stucklen, and others with an art for electrical/electronics.

I'm building an electrically dependent aircraft that will have redundant...
Forum: Traditional Aircraft Engines 05-11-2021, 08:48 PM
Replies: 13
Views: 1,251
Posted By Freemasm
Got a down leak compression tester? You can use...

Got a down leak compression tester? You can use the spark plug adapter as a guide. Find the compression stoke with your finger over the opening and get it semi close to TDC. Insert a stiff...
Showing results 1 to 64 of 366

 
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